Abstract: EXPLOSION PROOF SWITCHES Explosion proof switches Honeywell explosion proof switches are designed specifically for use in hazardous locations. To comply with explosion proof requirements, the flame path within the housing is designed to contain and cool the escaping hot gases that otherwise could cause an explosion outside the switch. Switches are available with UL/CSA for North America. See information below and product pages for details. In Europe, the usage is governed under the Eur ...